var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var lessMiddleware = require('less-middleware');
var logger = require('morgan');

//接收第三方路由
var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');
var accountRouter = require('./routes/account');

//设置art-template模板引擎
var app = express();
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.engine('html', require('express-art-template'));
app.set('view engine', 'html');
// app.set('view engine', 'jade');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({
    extended: false
}));
app.use(cookieParser());
app.use(lessMiddleware(path.join(__dirname, 'public')));
app.use(express.static(path.join(__dirname, 'public')));

//中间件路由
app.use('/', indexRouter);
app.use('/users', usersRouter);
app.use('/', accountRouter);


// catch 404 and forward to error handler
//收集404报错
app.use(function(req, res, next) {
    next(createError(404));
});

// error handler  报错信息
app.use(function(err, req, res, next) {
    // set locals, only providing error in development
    res.locals.message = err.message;
    res.locals.error = req.app.get('env') === 'development' ? err : {};

    // render the error page
    res.status(err.status || 500);
    res.render('error');
});

module.exports = app;